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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_ASSEMBLER_MIPS_H_ | 5 #ifndef VM_ASSEMBLER_MIPS_H_ |
6 #define VM_ASSEMBLER_MIPS_H_ | 6 #define VM_ASSEMBLER_MIPS_H_ |
7 | 7 |
8 #ifndef VM_ASSEMBLER_H_ | 8 #ifndef VM_ASSEMBLER_H_ |
9 #error Do not include assembler_mips.h directly; use assembler.h instead. | 9 #error Do not include assembler_mips.h directly; use assembler.h instead. |
10 #endif | 10 #endif |
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988 } | 988 } |
989 | 989 |
990 void SmiTag(Register reg) { | 990 void SmiTag(Register reg) { |
991 sll(reg, reg, kSmiTagSize); | 991 sll(reg, reg, kSmiTagSize); |
992 } | 992 } |
993 | 993 |
994 void SmiUntag(Register reg) { | 994 void SmiUntag(Register reg) { |
995 sra(reg, reg, kSmiTagSize); | 995 sra(reg, reg, kSmiTagSize); |
996 } | 996 } |
997 | 997 |
| 998 void LoadFromOffset(Register reg, Register base, int32_t offset) { |
| 999 if (Utils::IsInt(kImmBits, offset)) { |
| 1000 lw(reg, Address(base, offset)); |
| 1001 } else { |
| 1002 LoadImmediate(TMP, offset); |
| 1003 addu(TMP, base, TMP); |
| 1004 lw(reg, Address(TMP, 0)); |
| 1005 } |
| 1006 } |
| 1007 |
| 1008 void StoreToOffset(Register reg, Register base, int32_t offset) { |
| 1009 if (Utils::IsInt(kImmBits, offset)) { |
| 1010 sw(reg, Address(base, offset)); |
| 1011 } else { |
| 1012 LoadImmediate(TMP, offset); |
| 1013 addu(TMP, base, TMP); |
| 1014 sw(reg, Address(TMP, 0)); |
| 1015 } |
| 1016 } |
| 1017 |
998 void StoreDToOffset(DRegister reg, Register base, int32_t offset) { | 1018 void StoreDToOffset(DRegister reg, Register base, int32_t offset) { |
999 FRegister lo = static_cast<FRegister>(reg * 2); | 1019 FRegister lo = static_cast<FRegister>(reg * 2); |
1000 FRegister hi = static_cast<FRegister>(reg * 2 + 1); | 1020 FRegister hi = static_cast<FRegister>(reg * 2 + 1); |
1001 swc1(lo, Address(base, offset)); | 1021 swc1(lo, Address(base, offset)); |
1002 swc1(hi, Address(base, offset + kWordSize)); | 1022 swc1(hi, Address(base, offset + kWordSize)); |
1003 } | 1023 } |
1004 | 1024 |
1005 void LoadDFromOffset(DRegister reg, Register base, int32_t offset) { | 1025 void LoadDFromOffset(DRegister reg, Register base, int32_t offset) { |
1006 FRegister lo = static_cast<FRegister>(reg * 2); | 1026 FRegister lo = static_cast<FRegister>(reg * 2); |
1007 FRegister hi = static_cast<FRegister>(reg * 2 + 1); | 1027 FRegister hi = static_cast<FRegister>(reg * 2 + 1); |
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1224 Register value, | 1244 Register value, |
1225 Label* no_update); | 1245 Label* no_update); |
1226 | 1246 |
1227 DISALLOW_ALLOCATION(); | 1247 DISALLOW_ALLOCATION(); |
1228 DISALLOW_COPY_AND_ASSIGN(Assembler); | 1248 DISALLOW_COPY_AND_ASSIGN(Assembler); |
1229 }; | 1249 }; |
1230 | 1250 |
1231 } // namespace dart | 1251 } // namespace dart |
1232 | 1252 |
1233 #endif // VM_ASSEMBLER_MIPS_H_ | 1253 #endif // VM_ASSEMBLER_MIPS_H_ |
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